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Topic summary

Posted by George W. Maschke
 - Jun 27, 2004, 08:59 AM
It's normal for people to make minor admissions to "control" questions during the pre-test phase. When they do this, the polygrapher moves to contain further admissions, for example by saying: "John, honesty is of utmost importance to this agency. If you can't be honest with your own family, how can we trust you to be honest with us? You haven't lied about anything else, have you?"

Once the examinee answers, "No," the "control" question is re-phrased to exclude any admission(s) that were made, for example, "Other than what you told me, did you ever lie to a loved one?"

It is still expected that the examinee's denial will be untrue, or that he/she will at least be uncertain as to the truthfulness of his/her denial.

See Chapter 3 of The Lie Behind the Lie Detector for further information on polygraph procedure.
Posted by dork
 - Jun 26, 2004, 04:05 PM
 When you are asked for instance the following control question" have you ever lied to a loved one?" and you say yes, how will using counters help you if you are already being honest? i guess what im wondering if you are answering controls truthfully how do counter benefit you?